Commit Graph

375063 Commits

Author SHA1 Message Date
Fangrui Song 66bcbdbc9c [AArch64InstPrinter] Change printADRPLabel to print the target address in hexadecimal form
Similar to D77853. Change ADRP to print the target address in hex, instead of the raw immediate.
The behavior is similar to GNU objdump but we also include `0x`.

Note: GNU objdump is not consistent whether or not to emit `0x` for different architectures. We try emitting 0x consistently for all targets.

```
GNU objdump:       adrp x16, 10000000
Old llvm-objdump:  adrp x16, #0
New llvm-objdump:  adrp x16, 0x10000000
```

`adrp Xd, 0x...` assembles to a relocation referencing `*ABS*+0x10000` which is not intended. We need to use a linker or use yaml2obj.
The main test is `test/tools/llvm-objdump/ELF/AArch64/pcrel-address.yaml`

Differential Revision: https://reviews.llvm.org/D93241
2020-12-16 09:20:55 -08:00
Esme-Yi 2ea7210e39 Revert "[PowerPC] Extend folding RLWINM + RLWINM to post-RA."
This reverts commit 1c0941e152.
2020-12-16 17:12:24 +00:00
Whitney Tsang fa3693ad0b [LoopNest] Handle loop-nest passes in LoopPassManager
Per http://llvm.org/OpenProjects.html#llvm_loopnest, the goal of this
patch (and other following patches) is to create facilities that allow
implementing loop nest passes that run on top-level loop nests for the
New Pass Manager.

This patch extends the functionality of LoopPassManager to handle
loop-nest passes by specializing the definition of LoopPassManager that
accepts both kinds of passes in addPass.

Only loop passes are executed if L is not a top-level one, and both
kinds of passes are executed if L is top-level. Currently, loop nest
passes should have the following run method:

PreservedAnalyses run(LoopNest &, LoopAnalysisManager &,
LoopStandardAnalysisResults &, LPMUpdater &);

Reviewed By: Whitney, ychen
Differential Revision: https://reviews.llvm.org/D87045
2020-12-16 17:07:14 +00:00
Jon Chesterfield c0619d3b21 [NFC] Use regex for code object version in hip tests
[NFC] Use regex for code object version in hip tests

Extracted from D93258. Makes tests robust to changes in default
code object version.

Reviewed By: t-tye

Differential Revision: https://reviews.llvm.org/D93398
2020-12-16 17:00:19 +00:00
Fangrui Song 16cb7910f5 [ELF] --emit-relocs: fix a crash if .rela.dyn is an empty output section
Fix PR48357: If .rela.dyn appears as an output section description, its type may
be SHT_RELA (due to the empty synthetic .rela.plt) while there is no input
section. The empty .rela.dyn may be retained due to a reference in a linker
script. Don't crash.

Reviewed By: grimar

Differential Revision: https://reviews.llvm.org/D93367
2020-12-16 08:59:38 -08:00
Jon Chesterfield b607837c75 [libomptarget][nfc] Replace static const with enum
[libomptarget][nfc] Replace static const with enum

Semantically identical. Replaces 0xff... with ~0 to spare counting the f.
Has the advantage that the compiler doesn't need to prove the 4/8 byte
value dead before discarding it, and sidesteps the compilation question
associated with what static means for a single source language.

Reviewed By: jdoerfert

Differential Revision: https://reviews.llvm.org/D93328
2020-12-16 16:40:37 +00:00
Jonas Hahnfeld 6e890ec7be [CMake] Avoid __FakeVCSRevision.h with no git repository
Set the return variable to "" in find_first_existing_vc_file to
say that there is a repository, but no file to depend on. This works
transparently for all other callers that handle undefinedness and
equality to an empty string the same way.

Use the knowledge to avoid depending on __FakeVCSRevision.h if there
is no git repository at all (for example when building a release) as
there is no point in regenerating an empty VCSRevision.h.

Differential Revision: https://reviews.llvm.org/D92718
2020-12-16 17:33:20 +01:00
peter klausler 0775131058 [flang] Fix crash in folding (#48437)
Elemental intrinsic function folding was not taking the lower
bounds of constant array arguments into account; these lower bounds
can be distinct from 1 when named constants appear as arguments.

LLVM bugzilla #48437.

Differential Revision: https://reviews.llvm.org/D93321
2020-12-16 07:55:44 -08:00
Kai Nacke e2e86f4e77 [Doc][SystemZ] Add Linux/SystemZ to Getting Started guide.
The Linux/SystemZ platform is missing in the Getting Started guide
as platform on which LLVM is known to work.

Reviewed by: uweigand

Differential Revision: https://reviews.llvm.org/D93388
2020-12-16 10:46:05 -05:00
Florian Hahn 4a6a4e573f
[InstCombine] Precommit tests for !annotation metadata handling. 2020-12-16 15:43:30 +00:00
Matt Arsenault f3e0431b76 LangRef: Update byval/sret description for required types 2020-12-16 10:25:36 -05:00
Tim Keith 7082de56b7 [flang] Handle multiple names for same operator
Some operators have more than one name, e.g. operator(==), operator(.eq).
That was working correctly in generic definitions but they can also
appear in other contexts: USE statements and access statements, for
example.

This changes FindInScope to always look for each of the names for
a symbol. So an operator may be use-associated under one name but
declared private under another name and it will be the same symbol.
This replaces GenericSpecInfo::FindInScope which was only usable in
some cases.

Add a version of FindInScope() that looks in the current scope to
simplify many of the calls.

Differential Revision: https://reviews.llvm.org/D93344
2020-12-16 07:06:55 -08:00
Erik Pilkington 92d6e8001e NFC: balance a quote in AttrDocs.td
This was confusing my editor.
2020-12-16 10:01:24 -05:00
Erik Pilkington 95b2dab199 [Sema] Fix a miscompile by retaining array qualifiers when folding VLAs to constant arrays
rdar://72243125

Differential revision: https://reviews.llvm.org/D93247
2020-12-16 10:01:24 -05:00
Paul C. Anagnostopoulos d61ccda769 [TableGen] Slim down the data structures in xxxGenInstrInfo.inc, step 1 2020-12-16 09:57:43 -05:00
Simon Pilgrim e5039aad45 [X86] Regenerate bit extraction tests, cleaning up check-prefixes.
As noticed on D92965, we needed to simplify the prefixes to ensure all RUNs were properly covered.

We should never have a target with BMI2 without BMI1, so use that as the 'BMI level' and then check with/without TBM (all TBM targets have at least BMI1).
2020-12-16 14:48:21 +00:00
Simon Pilgrim 553808d456 [X86] Rename reduction combiners to make it clearer whats happening. NFCI.
Since these are all working on reduction patterns, actually use that term in the function name to make them easier to search for.

At some point we're likely to start working with the ISD::VECREDUCE_* opcodes directly in the x86 backend, but that is still some way off.
2020-12-16 14:48:21 +00:00
Mitch Phillips 66ee0d3d84 [sanitizer-common] Force pickup of llvm-symbolizer from new binaries.
It's possible currently that the sanitizer runtimes when testing grab
the path to the symbolizer through *SAN_SYMBOLIZER_PATH=...

This can be polluted by things like Android's setup script. This patch
forces external_symbolizer_path=$new_build_out_dir/llvm-symbolizer when
%env_tool_options is used.

Reviewed By: vitalybuka

Differential Revision: https://reviews.llvm.org/D93352
2020-12-16 06:36:26 -08:00
diggerlin a1e1dcabe4 [XCOFF][AIX] Emit EH information in traceback table
SUMMARY:

In order for the runtime on AIX to find the compact unwind section(EHInfo table),
we would need to set the following on the traceback table:

The 6th byte's longtbtable field to true to signal there is an Extended TB Table Flag.
The Extended TB Table Flag to be 0x08 to signal there is an exception handling info presents.
Emit the offset between ehinfo TC entry and TOC base after all other optional portions of traceback table.

The patch is authored by Jason Liu.

Reviewers: David Tenty, Digger Lin
Differential Revision: https://reviews.llvm.org/D92766
2020-12-16 09:34:59 -05:00
Caroline Concatto be9184bc55 [SLPVectorizer]Migrate getEntryCost to return InstructionCost
This patch also changes:
  the return type of getGatherCost and
  the signature of the debug function dumpTreeCosts
to use InstructionCost.

This patch is part of a series of patches to use InstructionCost instead of
unsigned/int for the cost model functions.

See this thread for context:
http://lists.llvm.org/pipermail/llvm-dev/2020-November/146408.html

See this patch for the introduction of the type:
https://reviews.llvm.org/D91174

Depends on D93049

Differential Revision: https://reviews.llvm.org/D93127
2020-12-16 14:18:40 +00:00
Denis Antrushin c5771a2f2d [Statepoints] Extract invoke tests into separate file. NFC.
Extract VReg lowering tests with invokes into separate file
for easier maintenance/modification.
Check MIR after register allocation - at this point all
transformations we're interested in has been applied and verifying
of MIR is simpler than that of assembly.
2020-12-16 20:53:28 +07:00
Stephan Bergmann 75f98f0f8c [PATCH] [compiler-rt] [builtins] Fix name of __aarch64_have_lse_atomics on Darwin
...where the name of that variable defined in
compiler-rt/lib/builtins/cpu_model.c is decorated with a leading underscore

Differential Revision: https://reviews.llvm.org/D93390
2020-12-16 14:42:03 +01:00
Bradley Smith e0b9c5df26 [CostModel] Add costs for llvm.experimental.vector.{extract,insert} intrinsics
Adds cost model support for the new llvm.experimental.vector.{extract,insert}
intrinsics, using the existing getExtractSubvectorOverhead and
getInsertSubvectorOverhead functions for shuffles.

Previously this case would throw an assertion.

Differential Revision: https://reviews.llvm.org/D93043
2020-12-16 13:39:04 +00:00
ergawy 6551c9ac36 [mlir][spirv] Add parsing and printing support for SpecConstantOperation
Adds more support for `SpecConstantOperation` by defining a custom
syntax for the op and implementing its parsing and printing.

Reviewed By: mravishankar, antiagainst

Differential Revision: https://reviews.llvm.org/D92919
2020-12-16 08:26:48 -05:00
Caroline Concatto 07217e0a1b [CostModel]Migrate getTreeCost() to use InstructionCost
This patch changes the type of cost variables (for instance: Cost, ExtractCost,
SpillCost) to use InstructionCost.
This patch also changes the type of cost variables to InstructionCost in other
functions that use the result of getTreeCost()
This patch is part of a series of patches to use InstructionCost instead of
unsigned/int for the cost model functions.

See this thread for context:
http://lists.llvm.org/pipermail/llvm-dev/2020-November/146408.html

Depends on D91174

Differential Revision: https://reviews.llvm.org/D93049
2020-12-16 13:08:37 +00:00
Caroline Concatto 60e4698b9a [CostModel]Replace FixedVectorType by VectorType in costgetIntrinsicInstrCost
This patch replaces FixedVectorType by VectorType in getIntrinsicInstrCost
in BasicTTIImpl.h. It re-arranges the scalable type test earlier return
and add tests for scalable types.

Depends on D91532

Differential Revision: https://reviews.llvm.org/D92094
2020-12-16 13:06:23 +00:00
Joe Ellis dad07baf12 [clang][AArch64][SVE] Avoid going through memory for VLAT <-> VLST casts
This change makes use of the llvm.vector.extract intrinsic to avoid
going through memory when performing bitcasts between vector-length
agnostic types and vector-length specific types.

Depends on D91362

Reviewed By: c-rhodes

Differential Revision: https://reviews.llvm.org/D92761
2020-12-16 12:24:32 +00:00
Muhammad Omair Javaid 9322e571d7 [LLDB] Skip TestGuiBasicDebug.py on Arm and AArch64/Linux
TestGuiBasicDebug.py is intermittenly timing out on LLDB AArch64/Linux
buildbot. Putting SkipIf decorator untill root cuase is identified.
2020-12-16 17:16:03 +05:00
Bangtian Liu c10757200d Revert "Ensure SplitEdge to return the new block between the two given blocks"
This reverts commit cf638d793c.
2020-12-16 11:52:30 +00:00
Simon Pilgrim e55f7de946 [X86][SSE] combineReductionToHorizontal - don't rely on widenSubVector to handle illegal vector types.
Thanks to @asbirlea for reporting the bug.
2020-12-16 11:24:40 +00:00
Muhammad Omair Javaid 9f80ab1213 Revert "[LLDB] Remove AArch64/Linux xfail decorator from TestGuiBasicDebug"
This reverts commit 3d27a99b2e.
2020-12-16 16:03:32 +05:00
Georgii Rymar 8c2cf89834 [yaml2obj/obj2yaml] - Make Value/Size fields of Symbol optional.
When a field is optional we can use the `=<none>` syntax in macros.
This patch makes `Value`/`Size` fields of `Symbol` optional
and adds test cases for them.

Differential revision: https://reviews.llvm.org/D93010
2020-12-16 13:49:57 +03:00
Georgii Rymar 407d420029 [lib/Object] - Make ELFObjectFile::getSymbol() return Expected<>.
This was requested in comments for D93209:
https://reviews.llvm.org/D93209#inline-871192

D93209 fixes an issue with `ELFFile<ELFT>::getEntry`,
after what `getSymbol` starts calling `report_fatal_error` for previously
missed invalid cases.

This patch makes it return `Expected<>` and updates callers.
For few of them I had to add new `report_fatal_error` calls. But I see no
way to avoid it currently. The change would affects too many places, e.g:
`getSymbolBinding` and other methods are used from `ELFSymbolRef`
which is used in too many places across LLVM.

Differential revision: https://reviews.llvm.org/D93297
2020-12-16 13:14:23 +03:00
Georgii Rymar 78aea98308 [llvm-readelf/obj] - Handle out-of-order PT_LOADs better.
This is https://bugs.llvm.org/show_bug.cgi?id=45698.

Specification says that
"Loadable segment entries in the program header table appear
in ascending order, sorted on the p_vaddr member."

Our `toMappedAddr()` relies on this condition. This patch
adds a warning when the sorting order of loadable segments is wrong.
In this case we force segments sorting and that allows
`toMappedAddr()` to work as expected.

Differential revision: https://reviews.llvm.org/D92641
2020-12-16 12:59:32 +03:00
Jan Svoboda 0da240c2d0 [clang][cli] Port DependencyOutput string based options to new option parsing system
Depends on D84186

Reviewed By: dexonsmith

Differential Revision: https://reviews.llvm.org/D84187
2020-12-16 10:28:37 +01:00
Piotr Sobczak c7afb698ca [AMDGPU] Avoid calling copyFastMathFlags in wrong context
Calling Instruction::copyFastMathFlags() assumes the caller is
FPMathOperator. Avoid calling the function for instructions
that are not instances of FPMathOperator.
2020-12-16 10:22:51 +01:00
Qiu Chaofan f141d1afc5 [NFC] Pre-commit test for long-double builtins
This test reflects clang behavior on long-double type math library
builtins under default or explicit 128-bit long-double options.
2020-12-16 17:19:54 +08:00
Jan Svoboda 383778e217 [clang][cli] Port LangOpts option flags to new option parsing system
Depends on D83892 & D83694 & D93104.

Reviewed By: dexonsmith

Differential Revision: https://reviews.llvm.org/D83979
2020-12-16 10:16:27 +01:00
Sebastian Neubauer 409a2f0f9e [AMDGPU] Allow no saddr for global addtid insts
I think the global_load/store_dword_addtid instructions support
switching off the scalar address.
Add assembler and disassembler support for this.

Differential Revision: https://reviews.llvm.org/D93288
2020-12-16 10:01:40 +01:00
Jan Svoboda 741978d727 [clang][cli] Port CodeGen option flags to new option parsing system
Depends on D83697.

Reviewed By: dexonsmith

Differential Revision: https://reviews.llvm.org/D83892
2020-12-16 10:00:33 +01:00
Alexander Belyaev f8184d4c44 [mlir] Lookup the latest value with a legal type when remapping values.
The current condition implies that the target materialization will be
called even if the type is the new operand type is legal, but slightly
different. For example, if there is a bufferization pattern that changes
memref layout, then target materialization for an illegal type
(TensorType) would be called.

Differential Revision: https://reviews.llvm.org/D93126
2020-12-16 09:53:19 +01:00
Jan Svoboda f2661bed18 [clang][cli] Prevent double denormalization
If both flags created through BoolOption are CC1Option and the keypath has a non-default or non-implied value, the denormalizer gets called twice. If the denormalizer has the ability to generate both flags, we can end up generating the same flag twice.

Reviewed By: dexonsmith, Bigcheese

Differential Revision: https://reviews.llvm.org/D93094
2020-12-16 09:44:54 +01:00
Jan Svoboda 95114f21f5 [clang][cli] Do not marshall only CC1Option flags in BoolOption
We cannot be sure whether a flag is CC1Option inside the definition of `BoolOption`. Take the example below:

```
let Flags = [CC1Option] in {
  defm xxx : BoolOption<...>;
}
```

where TableGen applies `Flags = [CC1Option]` to the `xxx` and `no_xxx` records **after** they have been is fully declared by `BoolOption`.

For the refactored `-f[no-]debug-pass-manager` flags (see the diff), this means `BoolOption` never adds any marshalling info, as it doesn't see either of the flags as `CC1Option`.

For that reason, we should defensively append the marshalling information to both flags inside `BoolOption`. Now the check for `CC1Option` needs to happen later, in the parsing macro, when all TableGen logic has been resolved.

However, for some flags defined through `BoolOption`, we can run into issues:

```
// Options.td
def fenable_xxx : /* ... */;

// Both flags are CC1Option, the first is implied.
defm xxx : BoolOption<"xxx,
  "Opts.Xxx", DefaultsToFalse,
  ChangedBy<PosFlag, [CC1Option], "", [fenable_xxx]>,
  ResetBy<NegFlag, [CC1Option]>>;
```

When parsing `clang -cc1 -fenable-xxx`:
* we run parsing for `PosFlag`:
  * set `Opts.Xxx` to default `false`,
  * discover `PosFlag` is implied by `-fenable-xxx`: set `Opts.Xxx` to `true`,
  * don't see `-fxxx` on command line: do nothing,
* we run parsing for `NegFlag`:
  * set `Opts.Xxx` to default `false`,
  * discover `NegFlag` cannot be implied: do nothing,
  * don't see `-fno-xxx` on command line: do nothing.

Now we ended up with `Opts.Xxx` set to `false` instead of `true`. For this reason, we need to ensure to append the same `ImpliedByAnyOf` instance to both flags.

This means both parsing runs now behave identically (they set the same default value, run the same "implied by" check, and call `makeBooleanOptionNormalizer` that already has information on both flags, so it returns the same value in both calls).

The solution works well, but what might be confusing is this: you have defined a flag **A** that is not `CC1Option`, but can be implied by another flag **B** that is `CC1Option`:
* if **A** is defined manually, it will never get implied, as the code never runs
```
def no_signed_zeros : Flag<["-"], "fno-signed-zeros">, Group<f_Group>, Flags<[]>,
  MarshallingInfoFlag<"LangOpts->NoSignedZero">, ImpliedByAnyOf<[menable_unsafe_fp_math]>;
```
* if **A** is defined by `BoolOption`, it could get implied, as the code is run by its `CC1Option` counterpart:
```
defm signed_zeros : BoolOption<"signed-zeros",
  "LangOpts->NoSignedZero", DefaultsToFalse,
  ChangedBy<NegFlag, [], "Allow optimizations that ignore the sign of floating point zeros",
            [cl_no_signed_zeros, menable_unsafe_fp_math]>,
  ResetBy<PosFlag, [CC1Option]>, "f">, Group<f_Group>;
```

This is a surprising inconsistency.

One solution might be to somehow propagate the final `Flags` of the implied flag in `ImpliedByAnyOf` and check whether it has `CC1Option` in the parsing macro. However, I think it doesn't make sense to spend time thinking about a corner case that won't come up in real code.

An observation: it is unfortunate that the marshalling information is a part of the flag definition. If we represented it in a separate structure, we could avoid the "double parsing" problem by having a single source of truth. This would require a lot of additional work though.

Note: the original patch missed the `CC1Option` check in the parsing macro, making my reasoning here incomplete. Moreover, it contained a change to denormalization that wasn't necessarily related to these changes, so I've extracted that to a follow-up patch: D93094.

Reviewed By: dexonsmith, Bigcheese

Differential Revision: https://reviews.llvm.org/D93008
2020-12-16 09:29:40 +01:00
Raul Tambre b2851aea80 Revert "[Compiler-rt][AArch64] Workaround for .cfi_startproc assembler parser bug."
039cb03dd0 (D93378) fixed the assembly separator, so the workaround is no longer necessary.

This reverts commit 3000c19df6.

Differential Revision: https://reviews.llvm.org/D93379
2020-12-16 10:22:04 +02:00
Fangrui Song 039cb03dd0 [builtins] Use %% as the separator for aarch64-*-darwin and ; for powerpc{32,64}
`;` is the default comment marker, which is also used by powerpc*-*-elf target triples.
`@` is the comment marker of powerpc*-*-darwin but the Darwin support has been deleted for PowerPC (D72063).
`%%` is the statement separator used by aarch64-*-darwin (see AArch64MCAsmInfoDarwin, it uses `;` as the comment marker, which is different from most other targets)

Reviewed By: tambre

Differential Revision: https://reviews.llvm.org/D93378
2020-12-16 00:13:22 -08:00
Siva Chandra Reddy 0524da67b4 [libc][NFC] Use ASSERT_FP_EQ to comapre NaN values in tests. 2020-12-15 23:48:54 -08:00
Stanislav Mekhanoshin eb66bf0802 [AMDGPU] Print SCRATCH_EN field after the kernel
Differential Revision: https://reviews.llvm.org/D93353
2020-12-15 22:44:30 -08:00
Siva Chandra Reddy f66cf13d5d [libc][NFC] Rename global `nan` in tests to `aNaN`.
The name `nan` conflicts with the function `nan` defined declared in
math.h.
2020-12-15 22:37:02 -08:00
Siva Chandra Reddy cee1e7d14f [libc][NFC][Obvious] Remove few unnecessary #include directives in tests. 2020-12-15 21:41:44 -08:00
Yaxun (Sam) Liu 4f14b80803 [HIP] unbundle bundled preprocessor output
There is a use case that users want to emit preprocessor
output as file and compile the preprocessor output later
with -x hip-cpp-output.

Clang emits bundled preprocessor output when users
compile with -E for combined host/device compilations.
Clang should be able to compile the bundled preprocessor
output with -x hip-cpp-output. Basically clang should
unbundle the bundled preprocessor output and launch
device and host compilation actions.

Currently there is a bug in clang driver causing bundled
preprocessor output not unbundled.

This patch fixes that.

Differential Revision: https://reviews.llvm.org/D92720
2020-12-15 22:14:18 -05:00